[dragonfly.git] / contrib / tcpdump / vfprintf.c

/*
 * Copyright (c) 1995
 *	The Regents of the University of California.  All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that: (1) source code distributions
 * retain the above copyright notice and this paragraph in its entirety, (2)
 * distributions including binary code include the above copyright notice and
 * this paragraph in its entirety in the documentation or other materials
 * provided with the distribution, and (3) all advertising materials mentioning
 * features or use of this software display the following acknowledgement:
 * ``This product includes software developed by the University of California,
 * Lawrence Berkeley Laboratory and its contributors.'' Neither the name of
 * the University nor the names of its contributors may be used to endorse
 * or promote products derived from this software without specific prior
 * written permission.
 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED
 * WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF
 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
 */

#ifndef lint
static const char rcsid[] _U_ =
    "@(#) $Header: /tcpdump/master/tcpdump/vfprintf.c,v 1.6 2003/11/16 09:36:45 guy Exp $ (LBL)";
#endif

#ifdef HAVE_CONFIG_H
#include "config.h"
#endif

#include <sys/types.h>

#include <stdio.h>
#include <stdarg.h>
#include <stdlib.h>
#include <unistd.h>

#include "interface.h"

/*
 * Stock 4.3 doesn't have vfprintf.
 * This routine is due to Chris Torek.
 */
vfprintf(f, fmt, args)
	FILE *f;
	char *fmt;
	va_list args;
{
	int ret;

	if ((f->_flag & _IOWRT) == 0) {
		if (f->_flag & _IORW)
			f->_flag |= _IOWRT;
		else
			return EOF;
	}
	ret = _doprnt(fmt, args, f);
	return ferror(f) ? EOF : ret;
}
Commit	Line	Data
c8cf0f94 PA	1	/*
	2	* Copyright (c) 1995
	3	* The Regents of the University of California. All rights reserved.
	4	*
	5	* Redistribution and use in source and binary forms, with or without
	6	* modification, are permitted provided that: (1) source code distributions
	7	* retain the above copyright notice and this paragraph in its entirety, (2)
	8	* distributions including binary code include the above copyright notice and
	9	* this paragraph in its entirety in the documentation or other materials
	10	* provided with the distribution, and (3) all advertising materials mentioning
	11	* features or use of this software display the following acknowledgement:
	12	* ``This product includes software developed by the University of California,
	13	* Lawrence Berkeley Laboratory and its contributors.'' Neither the name of
	14	* the University nor the names of its contributors may be used to endorse
	15	* or promote products derived from this software without specific prior
	16	* written permission.
	17	* THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED
	18	* WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF
	19	* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
	20	*/
	21
	22	#ifndef lint
	23	static const char rcsid[] _U_ =
	24	"@(#) $Header: /tcpdump/master/tcpdump/vfprintf.c,v 1.6 2003/11/16 09:36:45 guy Exp $ (LBL)";
	25	#endif
	26
	27	#ifdef HAVE_CONFIG_H
	28	#include "config.h"
	29	#endif
	30
	31	#include <sys/types.h>
	32
	33	#include <stdio.h>
	34	#include <stdarg.h>
	35	#include <stdlib.h>
	36	#include <unistd.h>
	37
	38	#include "interface.h"
	39
	40	/*
	41	* Stock 4.3 doesn't have vfprintf.
	42	* This routine is due to Chris Torek.
	43	*/
	44	vfprintf(f, fmt, args)
	45	FILE *f;
	46	char *fmt;
	47	va_list args;
	48	{
	49	int ret;
	50
	51	if ((f->_flag & _IOWRT) == 0) {
	52	if (f->_flag & _IORW)
	53	f->_flag \|= _IOWRT;
	54	else
	55	return EOF;
	56	}
	57	ret = _doprnt(fmt, args, f);
	58	return ferror(f) ? EOF : ret;
	59	}